How do we know God's elect will believe through the gospel?

In the context of Exodus 32, it becomes clear that not everyone who is part of the visible church is part of the covenant community. The sermon examines how God indicates to Moses that 'these people' are not all His. This theme is consistent throughout Scripture, showing that election is not merely a matter of being chosen but also of being set apart for belief in the gospel. In Colossians 1:13, we see that believers are conveyed into the kingdom of the Son. This illustrates that while God elects, it is through the ministry of the gospel that this election is actualized. Thus, the elect will certainly believe, as their election is inextricably linked to their response to the gospel call.